Stellarium wont reset

Ok now I did the stellarium with my husband and we had forgot to use the stellarium base before so I said wait here and I went out and used it then told him to go use it, well i forgot we were in a dungeon and I got the star key without him in there and now he cant get it. We have tried everything we know to get it to reset. We have logged out while in the dugeon, we have waited a half an hour for it to rest and it still has not. He has gone in alone with out me, we have gone in together. I dont know what to do to get him this star key. Anyone have any ideas on how to reset this dungeon. Please help so we can move on.